Effects of theanine on growth of human lung cancer and leukemia cells as well as migration and invasion of human lung cancer cells
Open accessAbstract
The aim of this study is to investigate the effects of theanine, a tea characteristic amino acid, on human lung cancer and leukemia cells. In the present study, we have demonstrated that theanine suppressed the in vitro and ex vivo growth of human non-small cell lung cancer A549 and leukemia K562 cell lines in dose- and time-dependant manners. In addition, theanine displayed the inhibitory effect on the migration of A549 cells. More importantly, theanine enhanced the anticancer activity of anticancer agents such as trichostatin A (the histone deacetylase inhibitor), berbamine and norcantharidin (the anticancer drugs in China) by strongly reducing the viability and/or migration rate in A549 cells. In addition, theanine significantly suppressed A549 cell invasion. Suppression of A549 cell migration may be one of the important mechanisms of action of theanine against the A549 cell invasion. Our present results suggest that theanine may have the wide therapeutic and/or adjuvant therapeutic application in the treatment of human lung cancer and leukemia.
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Claims other papers make about this one
Each is checked against this paper’s own text: does it say what the citing paper says it does?
48-h L-THE treatment induced in vitro and ex vivo growth of human non-small cell lung cancer A549 and leukemia K562 cell lines in dose- and time-dependent manners.
“48-h L-THE treatment induced in vitro and ex vivo growth of human non-small cell lung cancer A549 and leukemia K562 cell lines in dose-and time-dependant manners [80]”
From l-Theanine as a Functional Food Additive: Its Role in Disease Prevention and Health Promotion (2016) · cites this paper as [80]
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
Cites
Kweon, M., Adhami, V. M., Lee, J., & Mukhtar, H. (2006) · Journal of Biological Chemistry · doi:10.1074/jbc.m604748200 · Cited by 250 · see citing works
Structure−Activity Relationships of Tea Compounds against Human Cancer Cells
Friedman, M., Mackey, B. E., Kim, H., Lee, I., Lee, K.-R., Lee, S., Kozukue, E., & Kozukue, N. (2006) · Journal of Agricultural and Food Chemistry · doi:10.1021/jf062276h · Cited by 136 · see citing works
TERASHIMA, T., TAKIDO, J., & YOKOGOSHI, H. (1999) · Bioscience, Biotechnology, and Biochemistry · doi:10.1271/bbb.63.615 · Cited by 112 · see citing works
Sugiyama, T., & Sadzuka, Y. (1998) · Cancer Letters · doi:10.1016/s0304-3835(98)00185-2 · Cited by 63 · see citing works
Kitaoka, S., Hayashi, H., Yokogoshi, H., & Suzuki, Y. (1996) · Bioscience, Biotechnology, and Biochemistry · doi:10.1271/bbb.60.1768 · Cited by 63 · see citing works
ZHANG, G., MIURA, Y., & YAGASAKI, K. (2002) · Bioscience, Biotechnology, and Biochemistry · doi:10.1271/bbb.66.711 · Cited by 58 · see citing works
Self-citationZhang, G., Miura, Y., & Yagasaki, K. (1999) · Cytotechnology · doi:10.1023/a:1008076306672 · Cited by 41 · see citing works
Self-citationMembrane transport and antitumor activity of pirarubicin, and comparison with those of doxorubicin
Sugiyama, T., Sadzuka, Y., Nagasawa, K., Ohnishi, N., Yokoyama, T., & Sonobe, T. (1999) · Japanese Journal of Cancer Research · doi:10.1111/j.1349-7006.1999.tb00814.x · Cited by 40 · see citing works
Zhang, G., Miura, Y., & Yagasaki, K. (2001) · Cytotechnology · doi:10.1023/a:1014005423181 · Cited by 23 · see citing works
Self-citationEffect of dihydrokainate on the antitumor activity of doxorubicin
Sadzuka, Y., Yamashita, Y., Sugiyama, T., & Sonobe, T. (2002) · Cancer Letters · doi:10.1016/s0304-3835(02)00012-5 · Cited by 13 · see citing works
Flagged first, then by citations
Cited by
Sorted by citations
L-Theanine, Unique Amino Acid of Tea, and Its Metabolism, Health Effects, and Safety
Türközü, D., & Şanlier, N. (2017) · Critical Reviews in Food Science and Nutrition · doi:10.1080/10408398.2015.1016141 · Cited by 207 · see citing works
l-Theanine elicits umami taste via the T1R1 + T1R3 umami taste receptor
Narukawa, M., Toda, Y., Nakagita, T., Hayashi, Y., & Misaka, T. (2014) · Amino Acids · doi:10.1007/s00726-014-1713-3 · Cited by 78 · see citing works
l-Theanine as a Functional Food Additive: Its Role in Disease Prevention and Health Promotion
Williams, J., Kellett, J., Roach, P., McKune, A., Mellor, D., Thomas, J., & Naumovski, N. (2016) · Beverages · doi:10.3390/beverages2020013 · Cited by 52 · see citing works
Zhang, G., Ye, X., Ji, D., Zhang, H., Sun, F., Shang, C., Zhang, Y., Wu, E., Wang, F., Wu, F., et al. (2014) · Oncotarget · doi:10.18632/oncotarget.2336 · Cited by 47 · see citing works
Self-citationL-theanine and immunity: a review
Chen, S., Kang, J., Zhu, H., Wang, K., Han, Z., Wang, L., Liu, J., Wu, Y., He, P., Tu, Y., et al. (2023) · Molecules · doi:10.3390/molecules28093846 · Cited by 44 · see citing works
Liu, J., Sun, Y., Zhang, H., Ji, D., Wu, F., Tian, H., Liu, K., Zhang, Y., Wu, B., & Zhang, G. (2016) · European Journal of Pharmacology · doi:10.1016/j.ejphar.2016.09.007 · Cited by 38 · see citing works
Self-citation
- Authors
- Liu, Q., Duan, H., Luan, J., Yagasaki, K., & Zhang, G.
- Affiliations
- Yantai University (CN)
- Corresponding author
- Zhang, Guoying
- Venue
- Cytotechnology
- Published
- 2009-04
- Volume
- 59
- Issue
- 3
- Pages
- 211-217
- ISSN
- 0920-9069 (ISSN-L)
- 1573-0778
- PMC
- PMC2774573
- OpenAlex
- W2072886435
- Cited by
- 83
- References
- 10
- Citations by year
- 2025: 1 · 2024: 9 · 2023: 7 · 2022: 4 · 2021: 6 · 2020: 9 · 2019: 7 · 2018: 3 · 2017: 5 · 2016: 4 · 2015: 6 · 2014: 6 · 2013: 3 · 2012: 5
- FWCI
- 3.06
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Licence
- www.springer.com/tdm (tdm)
- Locations
- Cytotechnology (publishedVersion)
- PubMed Central (publishedVersion)
- PubMed (publishedVersion)
- Funders
- Yantai University
- Department of Science and Technology of Shandong Province
- Ministry of Education of the People's Republic of China
- Ministry of Human Resources and Social Security
- Topics
- Health Sciences › Medicine › Pathology and Forensic Medicine › Tea Polyphenols and Effects
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Biotechnology › Cancer Research and Treatments
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Biochemistry › Amino Acid Enzymes and Metabolism
- Keywords
- theanine, lung cancer, leukemia, non-small cell lung cancer, A549 cells, K562 cells, cell migration, cell invasion, histone deacetylase inhibitors, trichostatin A, berbamine, norcantharidin, anticancer agents, tumor cell growth inhibition
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review